answersLogoWhite

0

In children it happens because the eye is elongating as it grows causing the retina to get further and further from the focal point of light coming through the lens. In Older people it is because the lens is less flexible and so less able to focus light.

User Avatar

Wiki User

13y ago

What else can I help you with?

Related Questions

Can eyesight be fully regained after a vitrectomy?

In some cases, vision can be restored to 20/20 after a vitrectomy. If there are other complications, the patient may have poor eyesight after the procedure.


What numeric term describes perfect eyesight and a form of cricket?

20:20


What is Justin Biebers eyesight?

Um... I think it's 20/20. if not, contacts


What is considered normal eyesight and how can it be measured?

Normal eyesight is typically defined as having 20/20 vision, which means a person can see at 20 feet what a person with normal vision can see at 20 feet. Eyesight can be measured using a visual acuity test, where a person reads letters on a chart from a specific distance.


Is there other reasons that pressure will not get over 20 lbs?

It is quite possible there are other reasons, but since we don't know the reasons already provided, we can't tell what they are.


How do you convert minus eyesight such as -4.50 into the proper 20 20 scale?

get laser surgery


Can some African people have better than 2020 eyesight?

Yes, it is possible for some African people to have better than 20/20 eyesight. Visual acuity can vary among individuals, and some people may have better vision due to genetics, lifestyle factors, or corrective measures like glasses or contact lenses.


How bad is 2200 eyesight?

2200 in eyesight is considered legally blind once you reach 2400 in eyesight you will be permanently blind.


What do the numbers mean for eye sight?

You tend to have your eyesight tested from 6 meters or 20 feet away from the chart with the letters on it. If your eyesight is 6/12 (pronounced "six over twelve"), then your eyesight is not quite normal. This is because the letters you can read from 6 meters away can be read by a normal person from 12 meters away. That is, you have to be standing twice as close. If your eyesight is 6/6 (or 20/20 in feet), you are normal. If your eyesight is 6/5, you can see from 6 feet what a normal person can only see from 5 meters away. That is, they would have to take a step towards the chart to read these letters. 20/10 would mean that you can see things clearly at 20 feet that an average person can see clearly from 10. 20/20 is the standard for good eyesight.


Is 24 24 eyesight correctable?

No, 24/24 eyesight is not a common way of describing visual acuity. In standard terms, 20/20 vision is considered ideal. If the eye measurement is not standard, it may be possible to correct it with glasses or contact lenses depending on the underlying cause of the vision issue. It is recommended to consult with an eye care professional for a proper assessment.


What are ways to improve eyesight without undergoing surgery?

The 20/20/20 rule. Every 20 minutes, look into the distance of 20 feet for 20 seconds.


What do you need to spot an ice berg 20 miles away?

Good Eyesight